1) nonnegative Ricci curvature
具非负Ricci曲率
2) upholstery nonwovens
家具非织造布
3) diagonal dominant matrix with non zero chain
具非零链对角占优矩阵
1.
The paper gives an extension of diagonal dominant matrix with non zero chain,presents its property and connection with M matrix.
将具非零链对角占优矩阵进行了推广，给出了它的性质以及与Ｍ阵之间的关
4) Diffusion systems with nonlinear source
具非线性源的扩散系统
5) second order derivative nonlinear Schr(?)dinger equation
具非线性二阶导数项的Schr（?）dinger方程
6) Quasi diagonally dominant matrix with chain of non-zero elements
拟具非零元素链对角占优矩阵
补充资料：非想非非想处天
1.佛教语。即三界中无色界第四天。此天没有欲望与物质﹐仅有微妙的思想。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。